Mr. ROBEL. It is my understanding legally that I may waive my rights by answering one of these questions, and I don’t wish to waive my right to invoke the fifth amendment. Mr. MOULDER. You certainly were not waiving your rights when you stated a moment ago you were employed and where you were employed. Now if you belong to some labor organization in connection with your employment there is nothing in that connection certainly that would tend to incriminate you, if you are employed or in legitimate employment. (The witness confers with his counsel.) Mr. ROBEL. We are getting into complicated rights of waiver, and it is my understanding legally that I may refuse to answer. Mr. MOULDER. Do you decline to answer under the fifth amendment? Mr. ROBEL. Under the fifth amendment, yes, sir. Mr. WHEELER. Are you a member of the International Association of Machinists, A. F. of L.? (The witness confers with his counsel.) Mr. ROBEL. I must invoke the fifth amendment, as previously, and refuse to answer that. Mr. MOULDER. I wish to say that for as long as I have served on this committee, a period of approximately 7 years, I have never heard anyone invoke the fifth amendment in response to a question as to whether or not he was a member of an A. F. of L. union. (The witness confers with his counsel.) Mr. MOULDER. Proceed. Mr. WHEELER. Are you acquainted or have you been acquainted in the past with Mrs. Barbara Hartle. Mr. ROBEL. For the same reasons as previously given, that I might tend to incriminate myself, I will have to invoke the fifth amendment and refuse to answer that question. Mr. WHEELER. Quoting her testimony before this committee, appearing on page 6094 of volume 2 of the hearings held in June 1954: The Communist Party has always had a number of members in the machinists Union. Some of them that I can remember are Glenn Kinney, Ray Campbell, Frank Kerr, Gene Robel. Was Mrs. Hartle advising the committee of the truth when she testified to that? Mr. ROBEL. I must again invoke the fifth amendment for the previously stated reasons, and not admit or deny anything that any stool pigeon you may bring out says about me. Mr. MOULDER. To whom do you refer as a stool pigeon? (The witness confers with his counsel.) Mr. ROBEL. I apologize for that statement, sir, and withdraw it. Mr. MOULDER. Ordinarily a person referred to as a stool pigeon is one who is an accuser of some fact against someone else, and that person ordinarily retorts that they are a stool pigeon. You do withdraw that reference. Mr. WHEELER. Mrs. Hartle also testified--and this reference to her testimony can be found on page 6173 of volume 3 of the hearings: Gene Robel, whom I have mentioned before, and Glenn Kinney were also members of this industrial section.